KōChi San Midori En Onsen Yudono Mizu 哉 閣
高知三翠園温泉 湯殿 水哉閣こうちさんみどりえんおんせん ゆどの みず哉閣
Onsen annex of a historic Kochi ryokan, named for an emperor's words
Day Use
YesAdults (junior high and up) ¥1,200; 65+ ¥800; elementary school ¥600; ages 3+ ¥400; under 3 free. Last entry 15:30.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
Cold water plunge bath, typically used after sauna
Bathing Arrangements
A private bath you can reserve for yourself or your group
Shared bathing area for all genders
Policies & Services
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
On-site or nearby parking available
Views
RiverHighlights
UtaseyuAbout
Suisaikaku (水哉閣) is the onsen annex of Sansuien, a long-established ryokan on the grounds of the former Yamauchi clan villa in Kochi. The name comes from Emperor Taisho, who as Crown Prince praised the beauty of the Kagami River with the words "mizu yoki kana" (水良き哉, "how beautiful the water is"). The baths include indoor pools, a small open-air bath facing the river, a waterfall bath, a sauna, and a cold plunge. The water is smooth on the skin. The men's bath, Ichitoyo-no-yu (一豊の湯), is on the second floor; the women's, Chiyo-no-yu (千代の湯), on the third. Day use is available.
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Last updated September 19, 2026